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25 years of IBM's silent revolution

IBM may no longer make personal computers (PCs), but 25 years ago "" on August 12, 1981 "" it triggered a silent unplanned revolution when it announced the smallest and cheapest-priced computer system (IBM Personal Computer-5150), pricing it at $1,565.  An analyst was quoted as saying that "IBM bringing out a personal computer would be like teaching an elephant to tap-dance."  The system had an enhanced version of the Microsoft BASIC programming language (you have XP today and Vista to follow); an 83-key adjustable keyboard (you may laugh at it today); and 16 KB (512 MB and 1 GB ...